63123909 has 16 divisors (see below), whose sum is σ = 88862400. Its totient is φ = 39747456.

The previous prime is 63123883. The next prime is 63123911. The reversal of 63123909 is 90932136.

63123909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63123909 - 2²⁰ = 62075333 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63123909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63123919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19777 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (5553900).

Almost surely, 2^63123909 is an apocalyptic number.

It is an amenable number.

63123909 is a deficient number, since it is larger than the sum of its proper divisors (25738491).

63123909 is a wasteful number, since it uses less digits than its factorization.

63123909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 63123909 is about 7945.0556322785. The cubic root of 63123909 is about 398.1664182040.

The spelling of 63123909 in words is "sixty-three million, one hundred twenty-three thousand, nine hundred nine".